circular because you can find small circular magnets called "rare earth super magnets" at the store called princess auto
yes
There are some variables like what the magnet is made of and how it was initially magnetized. If a bar magnet is bent into a horseshoe shape to make a horseshoe magnet, the magnetic field will be more dense (stronger) across the gap of the horseshoe magnet than it would have been anywhere around the bar magnet from which it was made. And since magnets are strongest at their poles, horseshoe magnets can use both their poles at once while bar magnets can only use one pole at a time.
The bar that affects the compass is the magnet, The bar that is attracted to the magnet is iron, and the bar that is not attracted to the magnet is aluminum.
by keeping another magnet or attractive force
Fill the container about half full of water. Float a leaf on the surface of the water, and float the needle on the leaf. That'll be a beautiful demonstration. I think I'll make one, and I thank you for the idea.
The magnetic field of a bar magnet is strongest at either pole of the magnet. It is equally strong at the north pole compared with the south pole. The force is weaker in the middle of the magnet and halfway between the pole and the center
Not necessarily.
No, electromagnets are stronger than bar magnets.
No. The magnet has a sort of symmetry, in the sense that its two sides are "equal but opposite".
a electromagnet is bigger than a bar magnet
The small bar magnet has a stronger magnetic field, at least at short distances.
There are some variables like what the magnet is made of and how it was initially magnetized. If a bar magnet is bent into a horseshoe shape to make a horseshoe magnet, the magnetic field will be more dense (stronger) across the gap of the horseshoe magnet than it would have been anywhere around the bar magnet from which it was made. And since magnets are strongest at their poles, horseshoe magnets can use both their poles at once while bar magnets can only use one pole at a time.
The needle of a compass is a magnet. When a bar of metal is brought close to the compass, it can induce a magnetic field in the needle, causing it to move and align with the magnetic field of the metal bar. This interaction between the magnetic fields of the bar and the compass needle causes the movement.
A bar magnet is a magnet of rectangular shape with a north and and south end, which are sometimes coloured different colours to indicate which end is which.
They are bar magnet ,horse shoe magnet ,lime stone magnet.
no
Move towards the U magnet so that the poles attach.
The magnet bar is used for stirring solutions.